Karl Demetz ( 1906 - 1986 ) was a German painter. Karl Demetz s works have been put up for auction numerous times, with realized prices varying from 902.66 USD for Ernte am Staffelsee - Aufziehendes Wetter in 2004 to 1130.03 USD for Ernte im Neuffener Tal in 2006 , based on the size and medium of the artwork.